The Seiko 2C20-5490 is a watch model based on the 2C20 movement.
Parts List
| ES7W25HN00 | crystal |
| 38E01NA2 | crown - crown |
| 0H175BAA1 | case back gasket |
| EB0055B0A | others - crown and stem gasket |
Caliber 2C20
Seiko 2C20-5490 Watch Guide
The Seiko 2C20-5490 is a watch model based on the 2C20 movement.
| ES7W25HN00 | crystal |
| 38E01NA2 | crown - crown |
| 0H175BAA1 | case back gasket |
| EB0055B0A | others - crown and stem gasket |